To explore morbidity and health care utilization (HCU) among young adult males with OSA compared middle-aged OSA patients, over the five-year period preceding diagnosis.Case-Control prospective study.

• 调查比较成年男性阻塞性睡眠呼吸暂停(OSA)患者确诊之前年内，青年组和中年组的发病率和卫生服务利用(HCU)。前瞻性的病例对照研究。